package com.keller.guli.service.edu.controller.admin;


import com.baomidou.mybatisplus.core.metadata.IPage;
import com.keller.guli.common.base.result.R;
import com.keller.guli.service.edu.entity.form.CourseInfoForm;
import com.keller.guli.service.edu.entity.vo.CoursePublishVo;
import com.keller.guli.service.edu.entity.vo.CourseQueryVo;
import com.keller.guli.service.edu.entity.vo.CourseVo;
import com.keller.guli.service.edu.entity.vo.TeacherQueryVo;
import com.keller.guli.service.edu.service.CourseService;
import io.swagger.annotations.Api;
import io.swagger.annotations.ApiOperation;
import io.swagger.annotations.ApiParam;
import org.springframework.beans.factory.annotation.Autowired;
import org.springframework.web.bind.annotation.*;

import java.util.List;

/**
 * <p>
 * 课程 前端控制器
 * </p>
 *
 * @author keller
 * @since 2020-07-21
 */
@RestController
//@CrossOrigin
@Api(description = "课程管理")
@RequestMapping("/admin/edu/course")
public class CourseController {

    @Autowired
    private CourseService courseService;

    @ApiOperation("新增课程")
    @PostMapping(value = "save-course-info")
    public R saveCourseInfo(@ApiParam(value = "课程基本信息", required = true)
                            @RequestBody CourseInfoForm courseInfoForm){
        //因为前端进行下一步保存章节的时候需要课程id，所以返回课程id给前端
        String courseId = courseService.saveCourseInfo(courseInfoForm);
        return R.ok().data("courseId", courseId).message("保存成功");
    }

    @ApiOperation("根据ID查询课程")
    @GetMapping("course-info/{id}")
    public R getById(@ApiParam(value = "课程id", required = true)
                     @PathVariable String id){
        CourseInfoForm courseInfoForm = courseService.getCourseInfoById(id);
        if(courseInfoForm != null){
            return R.ok().data("item", courseInfoForm);
        }else{
            return R.error().message("课程不存在");
        }
    }

    @ApiOperation("更新课程")
    @PutMapping(value = "update-course-info")
    public R updateCourseInfoById(@ApiParam(value = "课程基本信息", required = true)
                                  @RequestBody CourseInfoForm courseInfoForm){
        courseService.updateCourseInfoById(courseInfoForm);
        return R.ok().message("更新成功");
    }

    //分页查询
    @ApiOperation("分页显示课程")
    @GetMapping("/list/{page}/{limit}")
    public R listPage(@ApiParam(value = "当前页码", required = true) @PathVariable long page,
                      @ApiParam(value = "每页记录数", required = true) @PathVariable long limit,
                      @ApiParam("课程查询对象")CourseQueryVo courseQueryVo) {
        IPage<CourseVo> pageModel = courseService.selectPage(page, limit, courseQueryVo);
        List<CourseVo> records = pageModel.getRecords();
        long total = pageModel.getTotal();
        return R.ok().data("total", total).data("rows", records);
    }

    @ApiOperation("根据ID删除课程")
    @DeleteMapping("remove/{id}")
    public R removeById(@ApiParam(value = "课程ID", required = true)
                        @PathVariable String id){
        //在此处调用vod中的删除视频文件的接口

        //删除封面：OSS
        courseService.removeCoverById(id);
        //删除课程
        boolean result = courseService.removeCourseById(id);

        if (result) {
            return R.ok().message("删除成功");
        } else {
            return R.error().message("数据不存在");
        }
    }

    @ApiOperation("根据ID获取课程发布信息")
    @GetMapping("course-publish/{id}")
    public R getCoursePublishVoById(@ApiParam(value = "课程ID", required = true)
                                    @PathVariable String id){
        CoursePublishVo coursePublishVo = courseService.getCoursePublishVoById(id);
        if (coursePublishVo != null) {
            return R.ok().data("item", coursePublishVo);
        } else {
            return R.error().message("数据不存在");
        }
    }

    @ApiOperation("根据ID发布课程信息")
    @PutMapping("publish-course/{id}")
    public R publishCourseById(@ApiParam(value = "课程ID", required = true)
                               @PathVariable String id){
        boolean result = courseService.publishCourseById(id);
        if (result) {
            return R.ok().message("发布成功");
        } else {
            return R.error().message("数据不存在");
        }
    }





}

